Phonograph.



No. 671,625. Patented Apr. 9, l90l. E. A. HAWTHORNE.

PHONPGRAPH. (Application filed Ian. 18, 1900.)

2 Sheets--Sheet I.

(No Model.)

:m l ulglgmluumii WITNESSES: 764 (/14 J Patented Apr. 9, l90l. E. A.HAWTHORNE.

PHQNOGR'APH. (Application filed Jan. 18, 1900.;

2 Sheets-Sheet 2.

(No Model.)

WITNESSES:

ATTORNEY uoams Firms co. mom-urns" wAsumamm a4 a UNITED STATES PATENTOFFICE.

ELLSWVORTH A. HAWTHORNE, OF MONTOLAIR, NEW JERSEY.

PHONOGRAPH.

$PECIFIGATION forming part Of' Letters Patent'No. 671,625, dated April9, 1901.

Application filed January 18, 1900. Serial No. 1,857. (No model.)

To all whom it may concern.-

Be it known that I, ELLSWORTH A. HAW- THORNE, a citizen of the UnitedStates of America, residing in Montclair, Essex county, New Jersey, haveinvented certain new and useful Improvements in Phonographs, of whichthe following is a specification.

My invention relates to phonographs,graphophones, and similar machines,the object being to secure certain adjustments of the recorder,reproducer, and shaving-knife relatively to the phonogram-blank or thesoundrecord cylinder.

I will describe a machine embodying my improvements and point out thenovel features thereof in the claims.

To carry out the object of my. invention, I have devised the meansillustrated in the accompanying drawings, in which Figure l is a sideelevation of a diaphragmsupporting arm and its adjuncts. Fig. 2 is avertical section on the plane of the line 2 2 of Fig. 1, certain of theparts being shown in elevation. Fig. 3 is a View in elevation of aportion of the diaphragm-supporting arm on the side opposite that shownin Fig. 1. Fig. 4 is a sectional view of the mandrel that carries thesound-record. Fig. 5 is a view, part in section and part in elevation,of a bracket on the diaphragm-supporting arm and a stud for raising andlowering the latter. Fig. 6 is a plan View of the diaphragm-supportingarm and bracket. Fig. 7 is a view of my improved knife adapted to beused in connection with the diaphragm-supporting arm.

In the drawings, in which similar letters of reference indicate similarparts, A designates the back rod, and A the back-rod sleeve, movablealong said rod, as found in well-known machines, to which my improvementrelates. A designates a split collar or ring clamped to the said sleeveby means of a screw a. The

upper face of the collar A is provided with a seat a to receive the endof the diaphragmsupporting arm B, the contacting faces being dovetailedto provide a fixed seat. The sleeve A and its attached parts are causedto travel along the rod A by means of the twin nut a traveling upon thescrew-threaded drive-shaft C and the arm A connected to said nut andalso to the sleeve A, this construction being one commonly used inmachines of this class.

The arm B, which carries a bracket adapted to support a recorder,reproducer, or shaving-knife, is curved on the arc of a circle, so as tobe concentric with the sound-record cylinder. This arm is clamped at itsrear end to the collar A by means of a screw a and at its forward end isformed into a bracket H, to be hereinafter described. This arm B isprovided upon its under face with a grooved Way or track Z7, adapted toreceive a slideblock B, which block has an upwardly-extending portion b,in which is seated a stud b On this stud is mounted a cam-lever Bwhichbears upon the upper face of the arm B and firmly locks theslide-block B to said arm. By adjusting the cam-lever the slideblock Bmay be moved to any part of the arm B and then clamped securely inposition thereon. The inner face of the upwardly-extending part b willpreferably be formed with a suitable guideway b and mounted so as to beadjustable along said way is a block D, which forms an integral part orhas secured to it a bracket D, which bracket is adapted to receive arecorder D or a reproducer or a shaving-knife of any approvedconstruction. The block D is slotted, as shown at (1, so that it may beadjusted to any position along the part b of the slide'block B by meansof a clamp-screw d, having a seat in the block B.

It is evident from a the construction that whatever may be the diameterof the soundrecord cylinder the recorder, reproducer, or shaving-knifecarried by the bracket D may be adjusted radially of said cylinder toaccommodate any one of said devices to a cylinder of greater or lessdiameter. Thus if the machine has been in use with a phonogramorcylinder of small diameter and it is desired to use one of greaterdiameter or one that is commonly known as concert size the recorder,reproducer, or shaving-knife may be adjusted radially outward toaccommodate said device to the larger phonogram or cylinder. Of course areverse adjustment may be used when changing from a large to a smallerphonogram orcylinder. It will also be"seen that according to theconstruction above described the recorder, reproducer, or shaving-knifemay be adjusted lengthwise of the arm B, according to the character ofthe record to be made or reproduced. For example, if a light engravingof the sound-record is required a better result is obtained by placingthe recorder substantially in the position shown in Fig. 1, and thereproducer should occupy the same position when it is in use. If a heavyengraving is required,

such as a record of a band, it is better to place the recorder at theright-hand end of arm B or at the back of the phonogram-blank, as insuch position the limiting-weight or the weight ofthe diaphragm bearsheavier on the recording-stylus, and hence a deeper cut will be made.

With the heavy engraving the reproducer may be thrown to the back of thephonogram, and thus the angle best suited to a proper reproductionsecured. Again, it may be found desirable to place the recorder orreproducer at the front of the cylinder for certain records. With thepresent form of adjustment it is possible by moving the recorder orreproducer along the arm B to ascertain precisely the position of thesaid devices or either of them best suited to the work required.

In Figs. 1 and 4 I have shown a form of mandrel that permits of a readychange in the size required or desired for use. In this form Cdesignates a mandrel adapted to receive the sound record or cylinder 0.The mandrel is provided near one end with a diaphragm 0, having acentral opening in which is seated the base or flange of a split collar0 The sections of the collar 0 are screwthreaded and tapered at theirouter ends. When placed upon the main driving-shaft G the collar, andconsequently the mandrel, may be secured to said shaft by meansof aclamp-nut 0, having an inclined shoulder 0 engaging the tapered ends ofthe collar-sections, and thus drawing the collar firmly down upon theshaft. Of course any other means, such as any Well-known clutchmechanism, may be employed to secure the mandrel to the shaft, the onlyconsideration being that whatever means shall be employed shall permitof easy and ready adjustment, so that a mandrel of any given size may beplaced upon the main driving-shaft without difficulty.

In Fig. 6 the adjustable bracket D is shown as supporting, by means of astud (i a tubular body D This tubular body has attached thereto the hornconnection D and also carries the diaphragm. connection-tube D to whichis attached a form of recorder commonly employed on graphophonemachines. This connection D has its inner end in the form of a platecurved to fit and bear against the inner wall of the body D forming asocket connection. The outer end of the stud d is screw-threaded, and aclampnut d mounted thereon permits the adjustment at any desired angleof elevation of the horn connection independently of the recorder 0rreproducer, even While the record is being made or reproduced. The wallof the tubular body is cut away, as shown at d, was to permit freemovement of the horn connection independently of the diaphragm to theextent of the portion cut away. With this form of attachment, inconnection with the radially-adjustable devices heretofore described, itis possible to adjust the position of the recording-stylus at any givenpoint on the phonogram-blank to bring the recordingpointinto operationto make cuts of different degrees. This may be done by first adjustingthe diaphragm connection by means of the nut 01 and screw (1 so as tothrow the recorder off the blank and then bring the recording-point intoa difierent angular position at the same point on the phonogramblank bymeans of the adjustable block or bracket D. In this manner therecordingpoint may be given any angular position with relation to thephonogram-blank, so that a cut of any desired character may be made.

The means just described for adjusting the horn connection and recorderare secured to the adjustable bracket D, and the sound-box adjustment(shown in Fig. 6) is capable of the adjustments heretofore describedlengthwise of the arm B and radially of the soundrecord cylinder.

In Fig. 7 I have shown a novel form of shaving-knife. It consists,essentially, of a body portion F, adapted to be seated in the bracket D.Passing vertically through an opening in the body F is a post F, whichcarries at its lower end a knife or cutter f and at its upper end asuitable handle f, by means of which the post may be rotated, and thusthe knife-edge adjusted so as to cut a narrow or wide strip from theperiphery of the sound-record cylinder. The body F is also provided witha screw-threaded recess to receive a screw G, which is provided near itsupper end with collars or rings g. Between these rings are the arms fforming part of a collar f clamped to the post F. By these means thepost F and the knife carried by it may be adjusted radially of thesoundrecord cylinder to give a light or heavy cut.

The front portion of the arm B is formed into a bracket H, which carriesthe roller H adapted to travel upon the edge I, forming part of theframe or body of the machine. This construction materially reduces thefriction of the arm B on the traveling way I. In order to lift the armB, and consequently the recorder, reproducer, or shaving-knife, from theperiphery of the sound-record cylinder, I provide a very simple means inthe pin h, seated in the bracket H and projecting into a slot h on thestud H, set into an opening in said bracket. 'A spring 7%, surroundingsaid stud and bearing against the bracket H, tends normally to hold theroller in contact with the edge I By turning the what manner the same isto be performed, I declare that what I claim is- 1. An attachment foruse on phonographs and graphophones, comprising a bracket to support arecorder, reproducer or shavingknife, an arm to which said bracket isadjustably secured, and means to adjust said bracket, together with therecorder, reproducer or shaving-knife when attached to the machine,relatively to said arm in a straight line in the direction of the radiusof the soundrecord cylinder, whereby said devices may be adjusted toaccommodate cylinders of difierent diameters on the same machine,substantially as described.

2. In a phonograph or graphophone, comprising a sound-record cylinder,an arm resting on the frame of the machine, a bracket to support arecorder, reproducer or shavingknife, means to adjust said bracket withthe recorder, reproducer or shaving-knife relatively to said arm in astraight line in the direction of the radius of the cylinder, wherebysaid devices may be adjusted to accommodate cylinders of differentdiameters on the same machine, substantially as described.

3. In a phonograph or graphophone comprising a sound-record cylinder thecombination of a curved arm mounted concentrically of the sound-recordcylinder, a bracket on said arm adapted to support a recorder,reproducer or shaving-knife, means to adjust said bracket lengthwise ofsaid arm and means to adjust said bracket radially of said arm,substantially as and for the purpose described.

4. In a phonograph or graphophone, comprising a sound-record cylinder,the combination of a curved arm attached to the back-rod sleeve of themachine concentrically of said cylinder, a block mounted on andadjustable lengthwise of said arm, a bracket, to support a recorder,reproducer or shaving-knife, adjustably secured to said block, and meansto adjust said bracket together with the recorder, re prod ucer orshaving-knife in a straight line in the direction of the radius of thecylinder, substantially as described.

5. In a phonograph or graphophone comprising a sound-record cylinder, anarm supported on the frame of the machine and embracing the sound-recordcylinder, a recording, reproducing, or shaving device supported on saidarm, and means to adjust said devices lengthwise of said arm,substantially as described.

6. In a phonograph or graphophone, comprising a sound-record cylinderthe combination of a curved arm, mounted on the frame of the machineconcentric with the soundrecord cylinder, a bracket mounted on said armand adjustable lengthwise thereof, a recorder, reproducer orshaving-knife supported by said bracket, and a cam-lever secured to saidbracket and bearing upon the said arm, to lock the said bracket to thesaid arm in any desired position.

7. A shaving-knife adapted to be used with phonographs or graphophones,consisting of a body portion, a knife-carrying arm, and means to adjustsaid arm and knife at any desired angle, to change the Width of the cut.

8. In a phonograph or graphophone, comprising a sound-record cylinderand a recorder or reproducer, an arm attached to the backrod sleeve ofthe machine, a bracket to support said recorder or reproducer adjustablymounted on said arm, a horn connection for the recorder or reproduceralso mounted on said bracket and means to adjust said horn connectionindependently of the recorder or reproducer.

9. In a phonograph or graphophone, comprising a sound-record cylinder,an arm secured to the back-rod sleeve, abracket mounted on said arm andadjustable thereon radially of the sound-record cylinder, a recordersupported by said bracket and means to adjust said recorder to anydesired angular position relatively to the sound-record cylinder, tomake any desired character of out.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ELLSWORTH A. HAWTHORNE.

Witnesses:

GEO. E. (Moss, CHARLES S. J ONES.

